This is a bolt-on replacement for the Saginaw P-series pump. All P-series pumps are easily identified as they bolt inside the front face of a steel reservoir. The Super Pump is designed and manufactured to produce the maximum pressure and flow possible without affecting the pump's durability. Modifications and the addition of proprietary components produce significant increases in flow and pressure over OEM and rebuilt auto parts store pumps. The AGR Super Pump is HIGHLY recommended for use with the Super Box 1 & 2 to get the most performance possible from your steering system.